The event that Americans commonly call the “First Thanksgiving” was celebrated by the Pilgrims after their first harvest in the New World in 1621.[3] This feast lasted three days, and — as accounted by attendee Edward Winslow[4] — it was attended by 90 Native Americans and 53 Pilgrims.[5] The New England colonists were accustomed to regularly celebrating “thanksgivings”—days of prayer thanking God for blessings such as military victory or the end of a drought.[6]